Finding the Fourth Proportional to 3,472.69, 4,792.31 and 1,900.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,472.69 : 4,792.31 = 1,900.79 : x
2. Step 2: Convert to fraction form
   3,472.69/4,792.31 = 1,900.79/x
3. Step 3: Cross multiply
   3,472.69x = 4,792.31 × 1,900.79
4. Step 4: Simplify right side
   3,472.69x = 9,109,155.72
5. Step 5: Solve for x
   x = 9,109,155.72/3,472.69
6. Step 6: Final answer
   x = 2,623.09